AIRS L3 Standard 8-day product (AIRS/AMSU)

AIRX3ST8 data sample

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The AIRS Level 3 8-Day Gridded Retrieval Product contains standard retrieval means, standard deviations and input counts.  Each file covers an 8-day period, or one-half of the Aqua orbit repeat cycle. The mean values are simply the arithmetic means of the daily products, weighted by the number of input counts for each day in that grid box.

The geophysical parameters have been averaged and binned into 1°x1° grid cells, from -180.0° to +180.0° longitude and from -90.0° to +90.0° latitude. For each grid map of 4-byte floating-point mean values there is a corresponding 4-byte floating-point map of standard deviation and a 2-byte integer grid map of counts. The counts map provides the user with the number of points per bin that were included in the mean and can be used to generate custom multi-day maps from the daily gridded products.

The geophysical parameters are: Skin Temperature, Surface Air Temperature, Air Temperature, Tropopause, Precipitable Water, Water Vapor, Cloud Amount/Frequency, Cloud Height, Cloud Top Pressure, Cloud Top Temperature, Reflectance, Emissivity, Sea Surface Temperature, Ozone, Surface Pressure, Cloud Vertical Distribution, Methane and Carbon Monoxide.

GES DISC Data Access

ESDT Shortname:
AIRX3ST8
Coverage:
Global, 8-Day 
Resolution:
Horizontal: 1 x 1 deg Vertical: up to 
24 pressure levels 

Volume:
103 MB/file, 1 file/8 days 

Product Guide:
AIRS User Guide
+ Quickstart Guide 

Instrument Guide:
AIRS Instrument Guide

To Plot L3 AIRS Temperatures 
(can save the image as well)
idl -novm -rt=l3_quick_temp.sav –args 
filename level(option) autoscale(option)

example: 
idl -novm -rt=l3_quick_ temp.sav -args AIRS.2007.
03.13.L3.RetStd001.v4.0.9.0.G07074152508.hdf 2 
autoscale level: 1-24 levels with default 1 which
is 1000 mb (1000, 925, 850, 700, 600, 500, 400, 
300, 250, 200, 150, 100, 70, 50, 30, 20, 15, 10, 7,
5, 3, 2, 1.5,1) 
                                        
scale: default 230-330 K